1. See, for example,Basic Features of the Glassy State, Proceedings of the Second International Workshop on non-crystalline Solids, San Sebastian, 1989, edited by J. Colmenero and A. Alegria (World Scientific, Singapore, 1989).
2. A molecular mechanics study on rotational motions of side groups in poly(methyl methacrylate)
3. The β dielectric relaxation in some methacrylate polymers
4. N. G. McCrum, B. E. Read, and G. Williams,Anelastic and Dielectric Effects in Polymeric Solids(Wiley, New York, 1967).
5. Molecular Nature of the .beta. Relaxation in Poly(methyl methacrylate) Investigated by Multidimensional NMR